canvas {
    display: block;
    width: 100vw;
    height: 100vh;
    position: relative;
    z-index: 3;
}
.mask{
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    display: flex;
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.4);
    .pop{
        width: 60vw;
        max-width: 400px;
        padding: 30px;
        background: #fff;
    }
    .title{
        text-align: center;
        font-size: 20px;
        margin-bottom: 20px;
    }
    .tip{
        color: #999;
        font-size: 18px;
        margin-bottom: 20px;
    }
    .row{
        margin-bottom: 16px;
        display: flex;
        justify-content: flex-start;
        align-items: center;
        gap: 10px;
        .lbe{
            width: 80px;
        }
        .txt{
            display: block;
            flex: 1;
            width: 0;
            padding: 4px;
        }
        .lock{
            width: 20px;
            height: 20px;
            background: #999;
        }
        .conn{
            margin-left: 10px;
            color: #999;
        }
    }
    .btns{
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 40px;
    }
}

.over{
    position: fixed;
    right: 8px;
    bottom: 8px;
    border: solid 1px #f0f0f0;
    width: 30px;
    height: 30px;
    background: #990088;
    color: #fff;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 14px;
    z-index: 4;
}

.pic{
    left: 8px;
    right: auto;
}

.bg{
    position: fixed;
    left: 0;
    top: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    .img{
        max-width: 80vw;
        max-height: 80vh;
        object-fit: contain;
        opacity: 0.5;
    }
}